(INDIANAPOLIS) - Democrat John Gregg has selected Indianapolis state Rep. Christina Hale as his running mate in what's shaping up to be a fierce rematch against Indiana Gov. Mike Pence.

A person with direct knowledge of the campaign's decision confirmed Tuesday that Gregg has picked Hale to run for lieutenant governor. The official spoke to The Associated Press on condition of anonymity because the person wasn't authorized to speak in advance of Wednesday's official announcement.

Hale was first elected to the state House in 2012 and represents a district on the north side of Indianapolis. She could not be reached for comment Tuesday night.

A former Kiwanis International executive, Hale has been a vocal advocate for victims of sexual assault and domestic abuse during her time in the Legislature.

Gregg's selection of a female running mate comes as little surprise and follows a bipartisan state trend that has emerged in recent years. Pence bucked that when he appointed Lt. Gov. Eric Holcomb in March to finish the term of Lt. Gov. Sue Ellspermann, his 2012 running mate who resigned.